Stereoptigraph.



G. W. KAUSER.

STEREOPTIGRAPH.

APPLIOATION FILED AUG.8, 1910.

Patented June 17, 1913.

5 SHEETS-18133! 1.

I I I I l l l l l l l l I II I 1' I COLUMBIA PLANOGRAPH CD" WASHINGTON,D. C.

G. W. KAUSER.

STEREOPTIGRAPH.

APPLICATION FILED 4M3, 1910.

1,064,838, Patented June 17, 1913.

5 SHEETS-SHEET 2.

COLUMBIA PMNOGRA'E'B- (IO-.WASHINGTON, D. c.

G. W. KAUSER.

STEREOPTIGRAPH. APPLICATION FILED WA, 1910.

1,064,838,, Y Patented June 17, 1913.

5 SHEETS-SHEET 3.

uoumum PLANUURAPH 60.,WASHING'ION. 0.1:.

G. W. KAUSBR.

' STEREOPTIGRAPH.

APPLICATION FILED AUG.3, 1910.

1,064,838, Patented June 17, 1913.

5 SHEETS-SHEET 4:.

I i I COLUMBIA PLANOGRAPH cu, WASHINGTON. D. c.

G. W. KAUSER.

STEREOPTIGRAPH.

APPLICATION FILED AUG.3, 1910.

1,664,838, Ifatented June 17, 1913.

5 SHEETS-SHEET 5.

@y @M g M AbH w GEORGE W. KAUSER, OF CEICAGO, ILLINOIS.

STEREOPTIGRAPH.

i Application filed August 3,

Specification of Letters Patent.

Patented Julie 17, 1%13.

816. Serial No. 575,305.

To all 107mm 2'25 may concern Be it known that l, GEORGE W. Fans-inn, acitizen of the United States, and a resident of Chicago, in the countyof Cook and State of Illinois, have invented certain new and usefulImprovements in Stereoptigraphs; and 1 do hereby declare that the following is a full, clear, and exactdescription thereof, reference beinghad to the accompanying drawings, and to the letters of refmarkedthereon, which form a part of this specification.

This invention relates to an improvement in stereoptigraphs and theprimary object of the invention is to provide a machine for producingupon a slide of glass covered with ink or other opaque substance of likecharacter pen or pencil effects in the form of pictures or writings. Thepictures or writings are exact reproductions of writings or iictureswhich are produced originally, or are traced from previously madeoriginals, by the operator on a platen or tablet which may be locatednear or at a distance from the stereopticon, depending upon the way inwhich the apparatus is to be used. he writing or picture produced on theslide is thrown. upon a screen in the usual way while being produced.

in that embodiment of my invention which is illustrated herein, theplaten or ahlct upon which the original is drawn or raced is locatedadjacent the receiving slide upon which the copy is reproduced; and thisen'ihodiment includes in its preferred form a plate of transparentmaterial, such glasspmounted in a. suitable guide which is a oapted tobe inserted in the stereopticon; mechanism for withdrawing the platefrom the axis of the: stereopticon and for re-inki g it and forreturning it to its first position; a receiving stylus which is adaptedto reproduce on the receiving plate of the steret-tigraph matter whichis drawn or traced another point; a sending platen or tablet whichadapted to support the paper upon which the original writing is made orto support the previously made picture or writk to be traced; a sendingor tracing pen or pencil which is adapted to produce the inal writingdrawing or picture or to tr over the previously made writing, drawing orpicture which is to be reproduced by the receiving stylus on the glassslide of the stcreoptigiaph; and mechanical connections between thetracing or sending pen and the receiving stylus, by means of which themovement of the point of the sendii'ig pen in the plane of its platen ortablet will be absolutely reproduced by a proportional movement in thesame direction of the point of the receiving stylus, in the plane of theglass slide, but in reversed order, so that the writing, drawing orpicture may appear upright upon the screen.

li' hile the apparatus described and illustrated herein is intendedprimarily for use in connection with a stereopticon and from this usederives its name, it will be apparent 1 proceed with my description thatit may be used in other connections and for other purposes and may beapplied to the mecoanical reproductions of drawings, writings orpictures produced at some distance from the receiving pen or stylus.

The invention consists of the matters hereinafter described and moreparticularly pointed out in the appended claims.

In the drawings :-Figure 1 is a top plan view of my improvedstereoptigraph. Fig. 2 is a longitudinal section through Fig. 1 on theline 22 thereof. Fig. 3 is an end elevation of the stereoptigraphshowing the glass slide and guide frame in cross section. Fig. 4 is avertical section through Fig. 1 on the line 4t thereof. Fig. 5 is ahorizontal section through FigQ on the line 55 thereof. Fig. 6 is apartial vertical section through Fig. 2 on the line 66 thereof. Fig. 7is a detail longitudinal sectional view through the carrying arm of thesending pen or pencil. Fig. 8 is a crosssection through F 7 on the line88 thereof. Fig. 9 is a longitudinal section on a modified scale throughthe sending pen. Fig. 10 is a longitudinal section through Fig. 9 on theline 10-10 thereof. Fig. 11 is a cross-section through Fig. 9 on theline 11-11 thereof. Fig. 12 is a partial horizontal section through Fig.2 on the line 12-12 thereof.

The apparatus, as illustrated in the drawings, is supported on a frame Aprovided with an inclined top A which supports the sending platen ortablet in a position convenient for writing or tracing upon.

a indicates the platen which is arranged near one end of the inclinedtop and is preferably covered by a plate a cut out to form a rectangularopening o the boundaries of which determine the limits of the picture orwriting that is to be reproduced. Upon the platen is located a strip ofpaper A which is preferably fed from a roll A r0- tatably mounted in abox a which is secured in any convenient manner to the front of theframe A.

B, B indicate tension rolls located at the top of the platen andsupported by standards b, 6 between which the paper is fed and by meansof which it may be withdrawn from the roll A As illustrated, the lowerroll B is journaled in the standards 6, Z) while the upper roll B isjournaled by means of trunnions 6 b in vertically swinging arms 6 bpivoted to said standards. Tension springs 6 connected at their upperends to said arms 5 and at their.

lower ends to the standards hold the upper roll yieldingly against thelower roll.

The glass slide upon which the picture or writing is to be reproduced isslidably sup ported in a guide frame comprising upper and lowerhorizontal bars 0 and front and rear vertical rolls 0 between which islocated in a vertical plane the frame in which said glass is mounted.Said guide frame is located near the front of the main frame andprojects from one end thereof. The horizontal bars 0, C are secured inany convenient manner to the main frame.

C is the slide frame and C the slide, being in this instance a glassplate carried near the outer end of its frame. Said glass slide iscovered with a thin coating of ink or other opaque substance to providea nontransparent surface upon which the receiving stylus reproduces thewriting or picture made by the sending pen or tracer by removingportions of said opaque matter.

Mechanism for inking the glass slide C is provided as follows: C is avertically arranged inking roll which is rotatably mounted in thehorizontal bars C- near the inner end of the glass C Said inking roll isso arranged that when the slide is withdrawn to the left end of itsguide frame it will contact with the glass slide and impart a freshcoating of ink thereto. It is preferably journaled in notches O in thefront edges of the bars C, C and is held therein by tension springs Cconnected to brackets C to hold said roll in yielding contact with saidglass slide when the same is passed under it. To the left of the inkingroll is located a disk 0 to the face of which is applied a quantity ofthick ink. The disk 0 is rotatably mounted on the slide frame C in aplane with the inked face of the glass slide. It is adapted to beintermittently rotated through a small angle by a pawl c secured to theupper bar C so as to engage ratchet teeth C on the edge of the disk 0when the slide frame is moved to withdraw the slide from thestereopticon. After the slide frame C has been withdrawn to the left topass the glass slide C under the inking roll 0 it is then preferablypushed to the right beyond the limits of the bars C of the guide frameto bring the disk 0 under and in engagement with the inking roll 0 Theink roll is thus covered with a fresh supply of ink. The plate is thenwithdrawn to bring the glass plate to its normal position in thestereopticon. By this arrangement the disk 0 is shifted through a smallangle each time the slide frame is withdrawn to ink the glass slide,thus bringing the fresh supply of ink on the disk into a new positionfor the next contact of the disk with the inking roll.

D indicates the sending or tracing pen. Said sending pen comprises aholder (Z and a writing member or pencil (Z Said pen is pivotallyconnected at d to a carrying arm E. F indicates a second carrying armconnected to the first at f by a ball and socket joint, seen in detailin Fig. 8. Said ball and socket joint embraces a ball f rigidly securedto the arm E and a forked ex tension f? of the arm F provided withsocket openings f in which the ball has bearing.

E F are secondary supporting arms which are connected, respectively, tothe primary supporting arms E, F by a ball and socket joint similar tothat above described as indicated at e and F E F indicate rotary membersto which the secondary arms E F are respectively secured. The rotarymembers are in the form of pulleys provided with axles E F which arejournaled in brackets E F bolted to the main frame. The axles E F arepreferably arranged with their axes in the same line, and the pulleys EF are located in planes parallel to the plane of the platen, so that thesecondary arms E F will swing in planes parallel to the plane of saidplaten. The axles are provided with point hearings in the brackets E Fto reduce friction. It is apparent that by this construction anymovement of the point of the pencil (Z in any direction in the plane ofthe platen will be resolved into two components, one in the direction ofthe length of the arm E and one in the direction of the length of thearm F, and that these components will produce a proportional angularmovement of the secondary arms E F which will. be communicated to thepulleys E F G indicates the stylus or receiving pen which is arranged tomore with its point in contact with the glass slide C thereby tracing onthe opaque, ink-covered surface thereof a transparent line caused by theremoval of the ink in the path of its travel. Said stylus is securedtothe end of a carrying arm J which is pivotally connected to a secondcarrying arm K. Each of the carrying arms J, K is pivotally connected atits ends respectively to secondary carrying arms J K each of which isrigidly connected to swing with rotary members J K mounted by means ofsuitable axles J", K in standards J secured to the main frame. Saidrotary members J K are in the forms of pulleys preferably having theiraxes of rotation in line with each other and arranged in planes parallelto the plane of the glass In the example illustrated herein the arms Jand K are connected directly with the axles J K respectively.

"he pulley T is connected to the pulley K by means of a wire belt GIntermediate the pulleys I and K are located a pair of tension pulleysG, G about which the parallel sections of the belt G pass. Said pulleysG G are mounted on axles g g which are journaled' in arms G G Said armsare secured to a shaft 9 journaled in the frame. A tension spring 9connects the free end of one of said arms G to the frame. A similar pairof tension pulleys H H mounted in the same way as indicated in thedrawings, are arranged intermediate the pulley E and the pulley J Thepulleys E F J and K are all of the same diameter so that by theconstruction described any angular movement of the secondary arms E Fimparts an equal angular movement to the corresponding secondary arms JK The angular movement of the secondary arms J, K communicates amovement to the primary arms J, K in the direction of their length atany instant which produces a resultant movement of the receiving pen Gin a direction relatively the same as that of the sending pen (P, thelength of the path of said movement of the receiving pen beingproportional to the length of the path of the sending pen. Yi hether themovement of said receiving pen be in the same or reversed directionrelative to that of the sending pen will depend upon whether theparallelograms formed by their respective primary and secondary arms areturned in the same direction or in opposite directions. in the exampleillustrated, the movements of the receiving pen are the reverse of thatof the sending pen, as it is necessary to have the picture or writing onthe slide upside down in order to throw it right side up on the screen.The ratio of the dimensions of the picture or writing reproduced on theglass slide to that of the picture or writing made or traced on thesending platen will be as the ratio of the lengths of the secondary armsof the receiving pen to the lengths of the secondary arms of the sendingpen.

Means are provided for raising the receiving pen D from the glass slidewhen the sending pen is raised from its platen as follows: A small.electromagnet L is mounted upon the upper bar C of the guide frame. Saidmagnet is provided With an armature L which is rigidly secured to avertical rod Z (see Figs. 1, 2 and 12) which is rotatably mounted in theupper and lower bars C, C between the glass slide frame C and thecarrying arm J of the receiving pen. L is a rectangular tl-shaped wireframe secured at its ends to the rod Z and. having a vertical member Lwhich normally rests in engagement with the underside of the carryingarm J. Said arm J is made of spring metal so that when the electromagnetL is energized and the hinged armature L caused to swing toward saidmagnet, the member L of the U-shaped frame L will lift the arm J awayfrom the glass slide C thus raising the receiving pen G from said slide.hen said magnetis deenerg'ized the spring tension of the arm J willbring the receiving pen G back into contact with the glass slide.Mechanism is provided in the sending pen D for making and breaking thecircuit which energizes said magnet Ti when said pencil or pen isrespectively lifted from its platen and brought into contact therewith.The holder (Z consists of a cylindrical barrel closed by a cap (Z whichis screwed into its upper end. The cylindrical barrel 0 is internallyscrew-threaded to receive a screw-threaded cylindrical block M. Said.block is of an insulating material and is provided with longitudinaldiametrically opposed slots m on its cylindrical surface. Extendingthrough said slots m m are parallel, diametrically opposed contact barsN which are connected at their upper ends to a disk N of insulatingmaterial provided with notches "n on its edges to receive the ends ofsaid contact bars. Said disk is rotatably mounted at the upper end ofthe barrel. The opposite ends of said contact bars are rigidly securedto a pencil supporting member D of insulating material which is boredout longitudinally to receive a lead pencil (Z and which is rotatablymounted in the lower end of the barrel (Z. In the bottom of thelongitudinal slots 1 2 in the block M are located brushes m, m which arein the form of flat plates the one on having sliding contact with one ofthe contact bars N and the other, m having sliding contactwith theopposite contact bar N. The end of the bar m is bent across the top ofthe block M while the end of the bar m is bent across the bottom of saidblock. (Z indicates a cont. ct which is adapted to engage the upper bentend of the brush m. The contact member (Z is supported at the upper endsof laterally dis posed wires (Z, (Z located in longitudinal grooves m m3formed in the cylindric surface of the block hi intermediate thechannels m m Said wires project at their lower ends below said block Mand are there connected to a sleeve (Z which is closed at its upper endand receives the upper end of rss the pencil (Z Said wires (Z arepreferably coiled about the contact member (Z and the upper end of thesleeve ([5 and then soldered thereon in order to make a good electricconnection. The upper closed end of the sleeve (Z is provided with aprojecting stud cl which supports a helical spring (Z which bearsbetween the upper closed end of said sleeve and the bent end of thebrush m Said spring normally holds the sleeve (Z in its lower positionwhich, through the wires (Z holds the contact member (Z in engagementwith the upper bent edge of the brush m. This is the position of theparts when the pencil is raised from the platen. When the pencil isbrought into engagement with the platen it forces the sleeve (Z upwardand with it the wires (6 which raise the contact (Z from its engagementswith the brush m and thus breaks the circuit. When the parts are innormal position, the circuit is from the contact bar N to the brush m,to the contact (Z the wires d, to the sleeve (Z through the helicalspring (V, to the brush m and thence to the second contact bar N,diametrically opposite the first one mentioned. When the pencil (Z isbrought into contact with the plate or the paper thereon, the circuit isbroken and the stud cl comes to bear against the block M through thebent end of the brush m thereby giving a solid bearing to the upper endof the pencil lead (Z2. By rotating the pencil supporting member D theblock M' is rotated, thus causing said block to move up or down by meansof its threaded connection with the barrel (Z thereby feeding the pencillead up or down, as desired. The carrying arm E is connected to theholder D by means of parallel, laterally separated contact bars 0 6which are pivotally connected to the pencil holding member D inengagement with the contact bars N located in the pencil holder. Thecarrying arm E is in the form of a hollow tube which is connected to thecontact bars 0 through the medium of an insulating block f Qne of saidcontacts 0 projects beyond said insulating block and makes electricconnection with the outer surface of the arm E (see Fig. 7), which thusforms part of the circuit. An insulated wire passes through the hollowtube constituting the carrying arm E and is led through the insulatingblock f to connect with the other contact 0 The outer surface of the armE is connected to a wire f which, together with the wire f leads to theelectromagnet L. Said wires are supported in any con venient manner soas not to interfere with the flexibility of the connections of theprimary and secondary carrying arms. From this description it will beapparent that when the pencil lead (Z is in contact with its plate, aswhen writing or tracing thereon, the contact member (Z will be raisedfrom the brush m and the circuit supplying the magnet will be open, sothat the receiving pen'or stylus G will remain in contact with the glassslide. Then said pencil is lifted from its platen, the contact member (iwill descend and engage the brush m, thereby closing the circuit andenergizing the magnet, which will swing the armature L on its hinge,thereby, through the U- shaped frame L raising the stylus carrying armJ, and lifting the stylus from the glass slide.

Any suitable mechanism may be used to feed the paper over the platen a,from the paper roll A but in the form of my in proved stereoptigraphillustrated herein, I provide a simple mechanism by means of which thepaper may be fed from the roll to bring a fresh sheet under the openinga in the plate a by the same movement of the hand which withdraws theslide frame to re-ink the glass slide.

On the journal of the feed roll 13 is keyed a drum B (see Figs. 1, 2 and3) which is held against back movementby any suitable back ratchetingdevice as, for example, the spring controlled back ratchet and wheel 13of familiar form. Upon said drum is wound several times a cord 13, theends of which are passed down about pulleys B, B rotatably supported atthe bottom of the frame A near its front wall, and then secured togetherand looped about a pulley B rotatably mounted on the frame. The pulleys1 and B are so arranged that the horizontal sections of the cord 13*passing about them are substantially parallel to the plane of the guideframe of the glass slide and a short distance below said frame.

A. ring B is secured to the rear horizontal section of the cord B and afinger hole B is cut in the end of the slide frame C It is apparent fromFig. 2 that, by placing one finger of the left hand in the hole B", andanother in the ring B the movement of the hand to the left to withdrawthe slide frame and re-ink the glass slide will cause a rotation of thefeed roll B to feed the paper from the roll A In order to clean thestylus D, I provide at the outer end of the glass slide C a verticallyarranged brush 0 which will be brought. into wiping contact with the endof the stylus when the slide frame is withdrawn to re-ink the glassslide.

By reason of the ball and socket connection between the primary andsecondary arms of the sending pen D and also the pivotal connection ofthe pen to the carrying arm im ncdiately connected to it, said pen iscapable of perfectly free movement in any direction so as to eliminateany possibility of a cramped feeling in the hand of the operator. Thismakes it possible for the operator to manipulate the sending pen in thesame way that he would a pen or penoil in ordinary writing. If desired,a construction and arrangement for the carrying arms of the sending pencould be made like that illustrated in connection with the receiving penbut in such case the only facility of movement would lie in the abilityto raise the pen from the platen when beginning at a new point orstarting a new word.

in Fig. 1. there is indicated at P, by dotted lines, the position of astereopticon, which shows the relative locations of the stereoptigraphand the stereopticon when in use. The guide frame, including the upperand lower bars C, C, is pushed into the usual slideway provided for thestereopticon plates. It apparent that the glass slide may be readilyre-inked without disturbing the relation of the stereoptigraph andstereopticon.

llhile, in the embodiment of my invention shown herein, the secondarycarrying arms of the sending pen are operatively connected to thesecondary arms of the re cciving pen by mechanical means and while that.is an important feature of my inven tion, at the same time, it will beunderstood that said secondary arms may be connected in other ways. itis also apparent that my improvements may be modified in various wayswitlmut departing from the spirit of my invention and i do not wish tobe limited to any of the details of construction and ar rangement shownand described except as pointed out in the appended claims.

The terms "ending pen and receiving pen sending platen and receivingplaten as employed hereinafter in the claims, are to be taken in theirbroadest sense and not to be understood as limited in any way exceptwhere such limitation is specifically mentioned. F or example, I meanthe term pen to include a pen, pencil, stylus or anything which may beused for writin drawing or tracing.

I claim as my invention 1. In combination, a sending platen, a sendingpen adapted to write or trace thereon, a pair of carrying arms connectedto said sending pen, said carrying arms having pivotal. connection witheach other, a pair of secondary carrying arms each pivotally connectedto one of said primary carrying arms, pulleys located in planes parallelto said sending platen, one pulley for each secondary arm, rigidlyconnected to said secondary arms, a receiving platen, a receiving penadapted to write or trace thereon, a second pair of primary carryingarms connected to said receiving pen, said second pair of primarycarrying arms being pivotally connected together, a second pair ofsecondary arms each pivotally connected to one of said last namedprimary arms, pulleys, one for each of said last-named secondary arms,located in planes parallel to said receiving platen, rigidly secured tosaid second pair of secondary arms, each pulley of the first pair beingequal in diameter to the corresponding pulley of the second set, andbelts connecting corresponding pulleys. 2. A stereopt-igraph embracing amain frame, a sending platen supported thereon, a sending pen adapted towrite on said sending platen, a guide frame projecting from the mainframe of said stereoptigraph, a slide movably mounted in said guideframe, a receiving pen adapted to trace on said slide, meansintermediate said receiving pen and said sending pen adapted toreproduce on the slide pen or pencil effects produced or traced on thesending platen by the sending pen, and means located in the path ofmovement of said slide for inking the same.

3. A stereoptigraph embracing a main frame, a sending platen supportedthereon, a sending pen adapted to write on said send ing platen, a guideframe projecting from the main frame of said stereoptigraph, a slideframe movably mounted in said guide frame, a plate secured to said slideframe, a receiving pen adapted to trace on said plate, meansintermediate said receiving pen and said sending pen adapted toreproduce on the plate pen or pencil e fects produced or traced on thesending platen by the sending pen, an inking roll located in the path ofmovement of said slide frame, a disk rotatably mounted on said slideframe, and means carried by said guide frame adapted to rotate said diskupon the movement of said slide frame.

4. A stereoptigraph embracing a main frame, a sending platen supportedthereon, feed rolls for feeding a strip of paper over said platen, asending pen adapted to write on said sending platen, a guide frameprojecting from the main frame of said stereoptigraph, a slide framemovably mounted in said guide frame, a plate carried by said slideframe, a receiving pen adapted to trace on said plate, meansintermediate said receiving pen and said sending pen adapted toreproduce on the plate pen or pencil effects produced or traced on thesending platen by the sending pen, an ink roll located in the path ofsaid. slide frame, and means for moving the slide to ink it and foroperating the feed rolls by the same movement.

5. In combination with a sending platen, a receiving platen, a receivingpen, and means including an electro-magnet for raising said receivingpen from said receiving platen, a sending pen movable to and from itsplaten comprising an elongated hollow holder, laterally separatedconductor bars located in said holder and projecting from the lower endthereof, a pencil of lead or the like located in said holder andprojecting from the lower end thereof, a pencil feeding member movablein said holder, brushes carried by said pencil feeding member in contactwith said laterally separated conductor bars, a contact adapted toengage one of said brushes, a movable pencil support for the upper endof said pencil electrically connected with said other brush, andflexibly connected with said pencil feeding member, said pencil supportbeing electrically connected with said contact and being movabletherewith, said pencil feeding member being adjustable in said holder,and electrical connections between said magnet and said conductor bars.

6. In combination with a sending platen, a receiving platen, a receivingpen, and means including an electro-magnet for raising said receivingpen from said receiving platen, a sending pen movable to and from itsplaten, comprising an elongated hollow holder having a screw-threadformed on its inner surface, a pencil supporting plug provided with alongitudinal opening rotatably supported in the lower end of said hollowholder, laterally separated conductor bars connected to said pencilsupporting plug andextending longitudinally within said hollow holder, adisk rotatably mounted in said holder, having the upper ends of saidconductor bars secured to it, a pencil feeding block' havingscrew-threaded engagement with the internal thread of said holder,laterally separated brushes carried by said block having slidingengagement with said conductor bars, a sleeve located within said holdernormally separated longitudinally from said block but adapted underpressure to contact therewith, a pencil of lead or the like extendingthrough the opening in said plug with its upper end located in saidsleeve, said sleeve being provided with means to limit the upwardmovement of said pencil, means for electrically connecting said sleeveand one of said brushes, a contact member adapted to contact with theother brush, said contact member being movable with, and electricallyconnected to, said sleeve, and electrical connections between saidmagnet and said conductor bars.

7. A stereoptigraph embracing a main frame, a sending platen supportedthereon, a sending pen adapted to write on said sending platen, a guideframe projecting from the main frame of said stereoptigraph, a slideframe movably mounted in said guide frame, a transparent plate securedto said slide frame, a receiving pen adapted to trace on saidtransparent plate, means intermediate said receiving pen and saidsending pen adapted to reproduce on the glass slide pen or pencileffects produced or traced on the sending platen by the sending pen,and. a brush carried by said slide frame adapted to clean said receivingpen when said slide frame is withdrawn.

In testimony that I claim the foregoing as my invention I my signaturein the presence of two witnesses, this 27th day of July, A. D. 1910.

GEORGE W. KAUSER.

Vitnesses T. H. ALrREDs, GEO. R. WiLKINs.

Copies 01 this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

